Summary:
Add a connection listener similarly to the one used on Android.
The usage at this point will come from framework events as a means to control when to capture the events or not.
Reviewed By: ivanmisuno
Differential Revision: D49092691
fbshipit-source-id: d004f7ff5d1a254ad5f9c7f207d485afcb7ac54a
2ad789d14e